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<?php
use Inpsyde\BackWPup\Infrastructure\Http\Authentication\BasicAuthCredentials;
use Inpsyde\BackWPup\Infrastructure\Http\Client\WpHttpClient;
use Inpsyde\BackWPup\Infrastructure\Http\Message\Decorator\AuthorizationRequest;
use Inpsyde\BackWPup\Infrastructure\Http\Message\Decorator\FormRequest;
use Inpsyde\BackWPup\Infrastructure\Http\Message\Decorator\JsonRequest;
use Inpsyde\BackWPup\Infrastructure\Http\Message\RequestFactory;
use Inpsyde\BackWPup\Infrastructure\Http\Message\ResponseFactory;
use Inpsyde\BackWPup\Infrastructure\Http\Message\StreamFactory;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Webmozart\Assert\Assert;
/**
* Class for communicating with Dropbox API V2.
*/
class BackWPup_Destination_Dropbox_API
{
/**
* URL to Dropbox API endpoint.
*/
public const API_URL = 'https://api.dropboxapi.com/';
/**
* URL to Dropbox content endpoint.
*/
public const API_CONTENT_URL = 'https://content.dropboxapi.com/';
/**
* URL to Dropbox for authentication.
*/
public const API_WWW_URL = 'https://www.dropbox.com/';
/**
* API version.
*/
public const API_VERSION_URL = '2/';
/**
* oAuth vars.
*
* @var string
*/
private $oauthAppKey = '';
/**
* @var string
*/
private $oauthAppSecret = '';
/**
* @var string
*/
private $oauthToken = [];
/**
* Job object for logging.
*
* @var BackWPup_Job
*/
private $jobObject;
/**
* Callback to call when token is refreshed.
*
* @var callable
*/
private $listener;
/**
* The user agent to use in Dropbox requests.
*
* @var string
*/
private $userAgent;
/**
* A path to the SSL ca-bundle file to use in Dropbox requests.
*
* @var string
*/
private $caBundle;
/**
* @param string $boxtype
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*/
public function __construct($boxtype = 'dropbox', BackWPup_Job $jobObject = null)
{
if ($boxtype === 'dropbox') {
$this->oauthAppKey = get_site_option(
'backwpup_cfg_dropboxappkey',
base64_decode('NXdtdXl0cm5qZzB5aHhw')
);
$this->oauthAppSecret = BackWPup_Encryption::decrypt(
get_site_option('backwpup_cfg_dropboxappsecret', base64_decode('cXYzZmp2N2IxcG1rbWxy'))
);
} else {
$this->oauthAppKey = get_site_option(
'backwpup_cfg_dropboxsandboxappkey',
base64_decode('a3RqeTJwdXFwZWVydW92')
);
$this->oauthAppSecret = BackWPup_Encryption::decrypt(
get_site_option('backwpup_cfg_dropboxsandboxappsecret', base64_decode('aXJ1eDF3Ym9mMHM5eGp6'))
);
}
if (empty($this->oauthAppKey) || empty($this->oauthAppSecret)) {
throw new BackWPup_Destination_Dropbox_API_Exception('No App key or App Secret specified.');
}
$this->jobObject = $jobObject;
}
/**
* List a folder.
*
* This is a functions method to use filesListFolder and
* filesListFolderContinue to construct an array of files within a given
* folder path.
*
* @param string $path
*
* @return array
*/
public function listFolder($path)
{
$files = [];
$result = $this->filesListFolder(['path' => $path]);
if (!$result) {
return [];
}
$files = array_merge($files, $result['entries']);
$args = ['cursor' => $result['cursor']];
while ($result['has_more'] === true) {
$result = $this->filesListFolderContinue($args);
$files = array_merge($files, $result['entries']);
$args['cursor'] = $result['cursor'];
}
return $files;
}
/**
* Uploads a file to Dropbox.
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*
* @return array
*/
public function upload(string $file, string $path = '', bool $overwrite = true)
{
$file = str_replace('\\', '/', $file);
if (!is_readable($file)) {
throw new BackWPup_Destination_Dropbox_API_Exception(
"Error: File \"{$file}\" is not readable or doesn't exist."
);
}
if (filesize($file) < 5242880) { //chunk transfer on bigger uploads
return $this->filesUpload(
[
'contents' => file_get_contents($file),
'path' => $path,
'mode' => ($overwrite) ? 'overwrite' : 'add',
]
);
}
return $this->multipartUpload($file, $path, $overwrite);
}
/**
* @param $file
* @param string $path
* @param bool $overwrite
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*
* @return array|mixed|string
*/
public function multipartUpload($file, $path = '', $overwrite = true)
{
$file = str_replace('\\', '/', (string) $file);
if (!is_readable($file)) {
throw new BackWPup_Destination_Dropbox_API_Exception(
"Error: File \"{$file}\" is not readable or doesn't exist."
);
}
$chunkSize = 4194304; //4194304 = 4MB
$fileHandle = fopen($file, 'rb');
if (!$fileHandle) {
throw new BackWPup_Destination_Dropbox_API_Exception('Can not open source file for transfer.');
}
if (!isset($this->jobObject->steps_data[$this->jobObject->step_working]['uploadid'])) {
$this->jobObject->log(__('Beginning new file upload session', 'backwpup'));
$session = $this->filesUploadSessionStart(
);
$this->jobObject->steps_data[$this->jobObject->step_working]['uploadid'] = $session['session_id'];
}
if (!isset($this->jobObject->steps_data[$this->jobObject->step_working]['offset'])) {
$this->jobObject->steps_data[$this->jobObject->step_working]['offset'] = 0;
}
if (!isset($this->jobObject->steps_data[$this->jobObject->step_working]['totalread'])) {
$this->jobObject->steps_data[$this->jobObject->step_working]['totalread'] = 0;
}
//seek to current position
if ($this->jobObject->steps_data[$this->jobObject->step_working]['offset'] > 0) {
fseek($fileHandle, $this->jobObject->steps_data[$this->jobObject->step_working]['offset']);
}
while ($data = fread($fileHandle, $chunkSize)) {
$chunkUploadStart = microtime(true);
if ($this->jobObject->is_debug()) {
$this->jobObject->log(
sprintf(__('Uploading %s of data', 'backwpup'), size_format(strlen($data)))
);
}
$this->filesUploadSessionAppendV2(
[
'contents' => $data,
'cursor' => [
'session_id' => $this->jobObject->steps_data[$this->jobObject->step_working]['uploadid'],
'offset' => $this->jobObject->steps_data[$this->jobObject->step_working]['offset'],
],
]
);
$chunkUploadTime = microtime(
true
) - $chunkUploadStart;
$this->jobObject->steps_data[$this->jobObject->step_working]['totalread'] += strlen($data);
//args for next chunk
$this->jobObject->steps_data[$this->jobObject->step_working]['offset'] += $chunkSize;
if ($this->jobObject->job['backuptype'] === 'archive') {
$this->jobObject->substeps_done = $this->jobObject->steps_data[$this->jobObject->step_working]['offset'];
if (strlen($data) == $chunkSize) {
$timeRemaining = $this->jobObject->do_restart_time();
//calc next chunk
if ($timeRemaining < $chunkUploadTime) {
$chunkSize = floor($chunkSize / $chunkUploadTime * ($timeRemaining - 3));
if ($chunkSize < 0) {
$chunkSize = 1024;
}
if ($chunkSize > 4194304) {
$chunkSize = 4194304;
}
}
}
}
$this->jobObject->update_working_data();
//correct position
fseek($fileHandle, $this->jobObject->steps_data[$this->jobObject->step_working]['offset']);
}
fclose($fileHandle);
$this->jobObject->log(
sprintf(
__('Finishing upload session with a total of %s uploaded', 'backwpup'),
size_format($this->jobObject->steps_data[$this->jobObject->step_working]['totalread'])
)
);
$response = $this->filesUploadSessionFinish(
[
'cursor' => [
'session_id' => $this->jobObject->steps_data[$this->jobObject->step_working]['uploadid'],
'offset' => $this->jobObject->steps_data[$this->jobObject->step_working]['totalread'],
],
'commit' => [
'path' => $path,
'mode' => ($overwrite) ? 'overwrite' : 'add',
],
]
);
unset($this->jobObject->steps_data[$this->jobObject->step_working]['uploadid'], $this->jobObject->steps_data[$this->jobObject->step_working]['offset']);
return $response;
}
/**
* Set the oauth tokens for this request.
*
* @param array $token The array with access and refresh tokens
* @param callable $listener The callback to be called when a new token is fetched
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*/
public function setOAuthTokens(array $token, $listener = null)
{
if (empty($token['access_token'])) {
throw new BackWPup_Destination_Dropbox_API_Exception(
__('No access token provided', 'backwpup')
);
}
if (empty($token['refresh_token'])) {
throw new BackWPup_Destination_Dropbox_API_Exception(
__('No refresh token provided. You may need to reauthenticate with Dropbox', 'backwpup')
);
}
$this->oauthToken = $token;
if (isset($listener) && is_callable($listener)) {
$this->listener = $listener;
}
if (isset($token['expires']) && time() > $token['expires']) {
$token = $this->refresh($token['refresh_token']);
$this->notifyRefresh($token);
}
}
/**
* Get the current token array.
*
* Also modifies expires_in to match how much time is left until the access token expires.
*
* @throws BadMethodCallException If tokens have not been set
*
* @return array The token array
*/
public function getTokens()
{
$now = time();
$tokens = $this->oauthToken;
if (empty($tokens)) {
throw new \BadMethodCallException(
__('OAuth tokens have not been set.', 'backwpup')
);
}
if ($tokens['expires'] > $now) {
$tokens['expires_in'] = $tokens['expires'] - $now;
} else {
$tokens = $this->refresh($tokens['refresh_token']);
$this->notifyRefresh($tokens);
}
return $tokens;
}
/**
* Returns the URL to authorize the user.
*
* @return string The authorization URL
*/
public function oAuthAuthorize()
{
return self::API_WWW_URL . 'oauth2/authorize?response_type=code&client_id=' . $this->oauthAppKey . '&token_access_type=offline';
}
/**
* Takes the oauth code and returns the access token.
*
* @param string $code The oauth code
*
* @return array an array including the access token, account ID, expiration, and
* other information
*/
public function oAuthToken($code)
{
$token = $this->request(
'oauth2/token',
[
'code' => trim($code),
'grant_type' => 'authorization_code',
],
'oauth'
);
$token['expires'] = time() + $token['expires_in'];
return $token;
}
/**
* Returns a new access token given the refresh token.
*
* @param string $refreshToken The refresh token
*
* @return array an array including the access token, account ID, expiration, and
* other information
*/
public function refresh($refreshToken)
{
$token = $this->request(
'oauth2/token',
[
'refresh_token' => trim($refreshToken),
'grant_type' => 'refresh_token',
],
'oauth'
);
$token['expires'] = time() + $token['expires_in'];
$this->oauthToken = array_merge($this->oauthToken, $token);
return $this->oauthToken;
}
/**
* Notifies the listener that the access token was refreshed.
*
* @param array $token The new token
*/
private function notifyRefresh(array $token)
{
if (isset($this->listener)) {
call_user_func($this->listener, $token);
}
}
/**
* Revokes the auth token.
*
* @return array
*/
public function authTokenRevoke()
{
return $this->request('auth/token/revoke');
}
/**
* Download.
*
* @param array $args argument for the api request
*
* @throws BackWPup_Destination_Dropbox_API_Exception because of a rate limit
*
* @return mixed whatever the api request returns
*/
public function download($args, $startByte = null, $endByte = null)
{
$args['path'] = $this->formatPath($args['path']);
if ($startByte !== null && $endByte !== null) {
return $this->request('files/download', $args, 'download', false, "{$startByte}-{$endByte}");
}
return $this->request('files/download', $args, 'download');
}
/**
* Deletes a file.
*
* @param array $args An array of arguments
*
* @return array|null Information on the deleted file
*/
public function filesDelete($args): ?array
{
$args['path'] = $this->formatPath($args['path']);
try {
return $this->request('files/delete', $args);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesDeleteError($e->getError());
return null;
}
}
/**
* Gets the metadata of a file.
*
* @param array $args An array of arguments
*
* @return array|null The file's metadata
*/
public function filesGetMetadata($args): ?array
{
$args['path'] = $this->formatPath($args['path']);
try {
return $this->request('files/get_metadata', $args);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesGetMetadataError($e->getError());
return null;
}
}
/**
* Gets a temporary link from Dropbox to access the file.
*
* @param array $args An array of arguments
*
* @return array|null Information on the file and link
*/
public function filesGetTemporaryLink($args): ?array
{
$args['path'] = $this->formatPath($args['path']);
try {
return $this->request('files/get_temporary_link', $args);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesGetTemporaryLinkError($e->getError());
return null;
}
}
/**
* Lists all the files within a folder.
*
* @param array $args An array of arguments
*
* @return array|null A list of files
*/
public function filesListFolder($args): ?array
{
$args['path'] = $this->formatPath($args['path']);
try {
return $this->request('files/list_folder', $args);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesListFolderError($e->getError());
return null;
}
}
/**
* Continue to list more files.
*
* When a folder has a lot of files, the API won't return all at once.
* So this method is to fetch more of them.
*
* @param array $args An array of arguments
*
* @return array|null An array of files
*/
public function filesListFolderContinue($args): ?array
{
try {
return $this->request('files/list_folder/continue', $args);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesListFolderContinueError($e->getError());
return null;
}
}
/**
* Uploads a file to Dropbox.
*
* The file must be no greater than 150 MB.
*
* @param array $args An array of arguments
*
* @return array|null the uploaded file's information
*/
public function filesUpload($args)
{
$args['path'] = $this->formatPath($args['path']);
if (isset($args['client_modified'])
&& $args['client_modified'] instanceof DateTime
) {
$args['client_modified'] = $args['client_modified']->format('Y-m-d\TH:m:s\Z');
}
try {
return $this->request('files/upload', $args, 'upload');
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$this->handleFilesUploadError($e->getError());
return null;
}
}
/**
* Append more data to an uploading file.
*
* @param array $args An array of arguments
*/
public function filesUploadSessionAppendV2($args)
{
try {
return $this->request(
'files/upload_session/append_v2',
$args,
'upload'
);
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$error = $e->getError();
// See if we can fix the error first
if ($error['.tag'] === 'incorrect_offset') {
$args['cursor']['offset'] = $error['correct_offset'];
return $this->request(
'files/upload_session/append_v2',
$args,
'upload'
);
}
// Otherwise, can't fix
$this->handleFilesUploadSessionLookupError($error);
}
}
/**
* Finish an upload session.
*
* @param array $args
*
* @return array|null Information on the uploaded file
*/
public function filesUploadSessionFinish($args): ?array
{
$args['commit']['path'] = $this->formatPath($args['commit']['path']);
try {
return $this->request('files/upload_session/finish', $args, 'upload');
} catch (BackWPup_Destination_Dropbox_API_Request_Exception $e) {
$error = $e->getError();
if ($error['.tag'] === 'lookup_failed') {
if ($error['lookup_failed']['.tag'] === 'incorrect_offset') {
$args['cursor']['offset'] = $error['lookup_failed']['correct_offset'];
return $this->request('files/upload_session/finish', $args, 'upload');
}
}
$this->handleFilesUploadSessionFinishError($e->getError());
return null;
}
}
/**
* Starts an upload session.
*
* When a file larger than 150 MB needs to be uploaded, then this API
* endpoint is used to start a session to allow the file to be uploaded in
* chunks.
*
* @param array $args
*
* @return array an array containing the session's ID
*/
public function filesUploadSessionStart($args = [])
{
return $this->request('files/upload_session/start', $args, 'upload');
}
/**
* Get user's current account info.
*
* @return array
*/
public function usersGetCurrentAccount()
{
return $this->request('users/get_current_account');
}
/**
* Get quota info for this user.
*
* @return array
*/
public function usersGetSpaceUsage()
{
return $this->request('users/get_space_usage');
}
/**
* Get the user agent.
*
* If no user agent has been provided, defaults to `BackWPup::get_plugin_data('User-Agent')`.
*
* @return string The user agent
*/
public function getUserAgent()
{
return $this->userAgent ?: \BackWPup::get_plugin_data('User-Agent');
}
/**
* Set the user agent.
*
* @param string $userAgent
*/
public function setUserAgent($userAgent)
{
$this->userAgent = $userAgent;
}
/**
* Get the SSL ca-bundle path.
*
* If no ca-bundle has been provided, defaults to `BackWPup::get_plugin_data('cacert')`.
*
* @return string The SSL ca-bundle
*/
public function getCaBundle()
{
return $this->caBundle ?: \BackWPup::get_plugin_data('cacert');
}
/**
* Set the path to the SSL ca-bundle.
*
* @param string $caBundle The path to the ca-bundle file
*/
public function setCaBundle($caBundle)
{
$this->caBundle = $caBundle;
}
/**
* Set the job object.
*
* @param BackWPup_Job $jobObject The job object to set
*/
public function setJobObject(BackWPup_Job $jobObject)
{
$this->jobObject = $jobObject;
}
/**
* Logs a message to the current job.
*
* @param string $message The message to log
* @param int $level The log level
*
* @return bool|null True on success, null if no job object set
*/
protected function log($message, $level = E_USER_NOTICE)
{
if (!isset($this->jobObject)) {
return null;
}
return $this->jobObject->log($message, $level);
}
/**
* Logs debug info about the current request.
*
* @param string $endpoint The current request endpoint
* @param array $args The request args
*
* @return bool|null True on success, null if no job object set or debug is not enabled
*/
protected function logRequest($endpoint, array $args)
{
if (!isset($this->jobObject) || !$this->jobObject->is_debug()) {
return null;
}
$message = "Call to {$endpoint}";
if (isset($args['contents'])) {
$message .= ' with ' . size_format(strlen((string) $args['contents'])) . ' of data,';
unset($args['contents']);
}
if (!empty($args)) {
$message .= ' with parameters ' . json_encode($args);
}
return $this->log($message);
}
/**
* Request.
*
* @param string $url
* @param array $args
* @param string $endpointFormat
* @param bool $echo
* @param string $bytes
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*
* @return array|mixed|string
*/
public function request($endpoint, $args = [], $endpointFormat = 'rpc', $echo = false, $bytes = null)
{
// Log request
$this->logRequest($endpoint, $args);
if ($bytes !== null) {
$args['bytes'] = $bytes;
}
$request = $this->buildRequest($endpoint, $args, $endpointFormat);
$client = $this->createClient();
$response = $client->sendRequest($request);
if ($response->getStatusCode() >= 500) {
$this->handleServerException($response);
} elseif ($response->getStatusCode() >= 400) {
$this->handleRequestException($response);
// If we're still here, then recurse
return $this->request($endpoint, $args, $endpointFormat, $echo, $bytes);
}
if ($echo === true) {
echo $response->getBody(); // phpcs:ignore
}
if ($response->getHeaderLine('Content-Type') === 'application/json') {
return json_decode($response->getBody(), true);
}
return $response->getBody()->getContents();
}
/**
* Gets the full URL to the Dropbox endpoint.
*
* @param string $endpoint The API endpoint
* @param string $format The endpoint Format
*
* @return string The full URL
*/
private function getUrl($endpoint, $format)
{
Assert::oneOf($format, ['oauth', 'rpc', 'upload', 'download']);
switch ($format) {
case 'oauth':
return self::API_URL . $endpoint;
case 'rpc':
return self::API_URL . self::API_VERSION_URL . $endpoint;
default:
return self::API_CONTENT_URL . self::API_VERSION_URL . $endpoint;
}
}
/**
* Builds the options for the request.
*
* @param string $endpoint The endpoint to call
* @param array $args The arguments for the request
* @param string $format The endpoint format
*
* @return RequestInterface The HTTP request
*/
private function buildRequest($endpoint, array &$args, $format)
{
$url = $this->getUrl($endpoint, $format);
$request = $this->createRequestFactory()
->createRequest('POST', $url)
;
if ($format !== 'oauth') {
$request = new AuthorizationRequest($request);
$request = $request->withOAuthToken($this->getTokens()['access_token']);
}
$streamFactory = new StreamFactory();
switch ($format) {
case 'oauth':
$request = new AuthorizationRequest(new FormRequest($request));
$request = $request
->withBasicAuth(BasicAuthCredentials::fromUsernameAndPassword($this->oauthAppKey, $this->oauthAppSecret))
->withFormParams($args, $streamFactory)
->withHeader('Accept', 'application/json')
;
break;
case 'rpc':
$request = new JsonRequest($request);
$request = $request
->withJsonData($args ?: null, $streamFactory)
->withHeader('Accept', 'application/json')
;
break;
case 'upload':
if (isset($args['contents'])) {
$stream = $streamFactory->createStream($args['contents']);
$request = $request->withBody($stream);
unset($args['contents']);
}
$request = $request
->withHeader('Content-Type', 'application/octet-stream')
->withHeader('Dropbox-API-Arg', json_encode($args, JSON_FORCE_OBJECT))
;
break;
case 'download':
if (isset($args['bytes'])) {
$request = $request
->withHeader('Range', 'bytes=' . $args['bytes'])
;
unset($args['bytes']);
}
$request = $request
->withHeader('Content-Type', 'text/plain')
->withHeader('Accept', 'application/octet-stream')
->withHeader('Dropbox-API-Arg', json_encode($args, JSON_FORCE_OBJECT))
;
break;
}
return $request;
}
/**
* Handle request exception.
*
* Called for 4xx responses.
*
* @param ResponseInterface $response The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception If the error cannot be handled
* @throws BackWPup_Destination_Dropbox_API_Request_Exception For endpoint-specific errors
* to be passed up the chain
*/
private function handleRequestException(ResponseInterface $response)
{
switch ($response->getStatusCode()) {
case 400:
case 401:
case 403:
case 409:
case 429:
$callback = [$this, 'handle' . $response->getStatusCode() . 'Error'];
call_user_func($callback, $response);
break;
default:
throw new BackWPup_Destination_Dropbox_API_Exception(
sprintf(
__(
'(%1$s) An unknown error has occurred. Response from server: %2$s',
'backwpup'
),
$response->getStatusCode(),
$response->getBody()->getContents()
)
);
}
}
/**
* Handle server exception.
*
* Called for 5xx responses.
*
* @param ResponseInterface $response The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*/
protected function handleServerException(ResponseInterface $response)
{
throw new BackWPup_Destination_Dropbox_API_Exception(
sprintf(
__(
'(%1$d) An unexpected server error was encountered. Response from server: %2$s',
'backwpup'
),
$response->getStatusCode(),
$response->getBody()->getContents()
)
);
}
/**
* Handle 400 response error.
*
* @param \Psr\Http\Message\ResponseInterface The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*/
protected function handle400Error(ResponseInterface $response)
{
throw new BackWPup_Destination_Dropbox_API_Exception(
sprintf(
__(
'(400) Bad input parameter. Response from server: %s',
'backwpup'
),
$response->getBody()->getContents()
)
);
}
/**
* Handle 401 response error.
*
* @param \Psr\Http\Message\ResponseInterface The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception If token is invalid
*/
protected function handle401Error(ResponseInterface $response)
{
$error = json_decode($response->getBody()->getContents(), true);
if ($error['error']['.tag'] === 'expired_access_token') {
$this->refresh($this->oauthToken['refresh_token']);
} else {
throw new BackWPup_Destination_Dropbox_API_Exception(
sprintf(
__(
'(401) Bad or expired token. Response from server: %s',
'backwpup'
),
$error['error']['.tag']
)
);
}
}
/**
* Handle 403 response error.
*
* @param \Psr\Http\Message\ResponseInterface The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception
*/
protected function handle403Error(ResponseInterface $response)
{
$error = json_decode($response->getBody(), true);
if ($error['error']['.tag'] === 'invalid_account_type') {
// InvalidAccountTypeError
if ($error['error']['invalid_account_type']['.tag'] === 'endpoint') {
throw new BackWPup_Destination_Dropbox_API_Exception(
__(
'(403) You do not have permission to access this endpoint.',
'backwpup'
)
);
}
if ($error['error']['invalid_account_type']['.tag'] === 'feature') {
throw new BackWPup_Destination_Dropbox_API_Exception(
__(
'(403) You do not have permission to access this feature.',
'backwpup'
)
);
}
}
// Catch all
throw new BackWPup_Destination_Dropbox_API_Exception(
sprintf(
__(
'(403) You do not have permission to access this resource. Response from server: %s',
'backwpup'
),
$error['error_summary']
)
);
}
/**
* Handle 409 response error.
*
* @param \Psr\Http\Message\ResponseInterface The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Request_Exception
*/
protected function handle409Error(ResponseInterface $response)
{
$error = json_decode($response->getBody(), true);
throw new BackWPup_Destination_Dropbox_API_Request_Exception(
sprintf(
__(
'(409) Endpoint-specific error. Response from server: %s',
'backwpup'
),
$error['error_summary']
),
$response->getStatusCode(),
null,
$error['error']
);
}
/**
* Handle 429 response error.
*
* This error is encountered when requests are being rate limited.
*
* @param \Psr\Http\Message\ResponseInterface The returned response
*
* @throws BackWPup_Destination_Dropbox_API_Exception If unable to detect time to wait
*/
protected function handle429Error(ResponseInterface $response)
{
if (!$response->hasHeader('Retry-After')) {
throw new BackWPup_Destination_Dropbox_API_Exception(
__(
'(429) Requests are being rate limited. Please try again later.',
'backwpup'
)
);
}
sleep(intval($response->getHeaderLine('Retry-After')));
}
/**
* Creates a new HTTP client.
*
* @return ClientInterface
*/
protected function createClient()
{
$options = [
'timeout' => 60,
];
if (empty($this->getCaBundle())) {
$options['sslverify'] = false;
} else {
$options += [
'sslverify' => true,
'sslcertificates' => $this->getCaBundle(),
];
}
if (!empty($this->getUserAgent())) {
$options['user-agent'] = $this->getUserAgent();
}
return new WpHttpClient(new ResponseFactory(), new StreamFactory(), $options);
}
/**
* Creates a request factory for creating requests.
*
* @return RequestFactory
*/
protected function createRequestFactory()
{
return new RequestFactory();
}
/**
* Formats a path to be valid for Dropbox.
*
* @param string $path
*
* @return string The formatted path
*/
private function formatPath($path)
{
if (!empty($path) && substr($path, 0, 1) !== '/') {
$path = '/' . rtrim($path, '/');
} elseif ($path === '/') {
$path = '';
}
return $path;
}
// Error Handlers
private function handleFilesDeleteError($error)
{
switch ($error['.tag']) {
case 'path_lookup':
$this->handleFilesLookupError($error['path_lookup']);
break;
case 'path_write':
$this->handleFilesWriteError($error['path_write']);
break;
case 'other':
trigger_error('Could not delete file.', E_USER_WARNING);
break;
}
}
private function handleFilesGetMetadataError($error)
{
switch ($error['.tag']) {
case 'path':
$this->handleFilesLookupError($error['path']);
break;
case 'other':
trigger_error('Cannot look up file metadata.', E_USER_WARNING);
break;
}
}
private function handleFilesGetTemporaryLinkError($error)
{
switch ($error['.tag']) {
case 'path':
$this->handleFilesLookupError($error['path']);
break;
case 'other':
trigger_error('Cannot get temporary link.', E_USER_WARNING);
break;
}
}
private function handleFilesListFolderError($error)
{
switch ($error['.tag']) {
case 'path':
$this->handleFilesLookupError($error['path']);
break;
case 'other':
trigger_error('Cannot list files in folder.', E_USER_WARNING);
break;
}
}
private function handleFilesListFolderContinueError($error)
{
switch ($error['.tag']) {
case 'path':
$this->handleFilesLookupError($error['path']);
break;
case 'reset':
trigger_error('This cursor has been invalidated.', E_USER_WARNING);
break;
case 'other':
trigger_error('Cannot list files in folder.', E_USER_WARNING);
break;
}
}
private function handleFilesLookupError($error)
{
switch ($error['.tag']) {
case 'malformed_path':
trigger_error('The path was malformed.', E_USER_WARNING);
break;
case 'not_found':
trigger_error('File could not be found.', E_USER_WARNING);
break;
case 'not_file':
trigger_error('That is not a file.', E_USER_WARNING);
break;
case 'not_folder':
trigger_error('That is not a folder.', E_USER_WARNING);
break;
case 'restricted_content':
trigger_error('This content is restricted.', E_USER_WARNING);
break;
case 'invalid_path_root':
trigger_error('Path root is invalid.', E_USER_WARNING);
break;
case 'other':
trigger_error('File could not be found.', E_USER_WARNING);
break;
}
}
private function handleFilesUploadSessionFinishError($error)
{
switch ($error['.tag']) {
case 'lookup_failed':
$this->handleFilesUploadSessionLookupError(
$error['lookup_failed']
);
break;
case 'path':
$this->handleFilesWriteError($error['path']);
break;
case 'too_many_shared_folder_targets':
trigger_error('Too many shared folder targets.', E_USER_WARNING);
break;
case 'other':
trigger_error('The file could not be uploaded.', E_USER_WARNING);
break;
}
}
private function handleFilesUploadSessionLookupError($error)
{
switch ($error['.tag']) {
case 'not_found':
trigger_error('Session not found.', E_USER_WARNING);
break;
case 'incorrect_offset':
trigger_error(
'Incorrect offset given. Correct offset is ' .
intval($error['correct_offset']) . '.',
E_USER_WARNING
);
break;
case 'closed':
trigger_error(
'This session has been closed already.',
E_USER_WARNING
);
break;
case 'not_closed':
trigger_error('This session is not closed.', E_USER_WARNING);
break;
case 'other':
trigger_error(
'Could not look up the file session.',
E_USER_WARNING
);
break;
}
}
private function handleFilesUploadError($error)
{
switch ($error['.tag']) {
case 'path':
$this->handleFilesUploadWriteFailed($error['path']);
break;
case 'other':
trigger_error('There was an unknown error when uploading the file.', E_USER_WARNING);
break;
}
}
private function handleFilesUploadWriteFailed($error)
{
$this->handleFilesWriteError($error['reason']);
}
private function handleFilesWriteError($error)
{
$message = '';
// Type of error
switch ($error['.tag']) {
case 'malformed_path':
$message = 'The path was malformed.';
break;
case 'conflict':
$message = 'Cannot write to the target path due to conflict.';
break;
case 'no_write_permission':
$message = 'You do not have permission to save to this location.';
break;
case 'insufficient_space':
$message = 'You do not have enough space in your Dropbox.';
break;
case 'disallowed_name':
$message = 'The given name is disallowed by Dropbox.';
break;
case 'team_folder':
$message = 'Unable to modify team folders.';
break;
case 'other':
$message = 'There was an unknown error when uploading the file.';
break;
}
trigger_error($message, E_USER_WARNING); // phpcs:ignore
}
}